Lubricator for loose pulleys.



C. S. SCOBEE.

LUBRICATOR FDR LOOSE PULLEYS (Application fllec? Sept. 30, 1901.)

Patented July I, 1902.

(No Model.)

lizyelziar {Zzaakficofiee NITED TATES Fries.

' LU BRICATOR FOR LOOSE PULLEY'S.

SPECIFICATION forming part of Letters Patent No. 703,838, dated July 1, 1902.

Application filed September 30,1901. Serial No. 77,116. (No model.)

To all whom it may concern:

Be it known that I, CLAUDE S. SOOBEE, a citizen of the United States, residing at Winchester, in the county of Olark'and State of Kentucky, have invented new and useful Improvemen ts in Lnbricators for Loose Pulleys, of which the following is a specification.

This invention relates to a lubricator for loose pulleys, although it will be obvious from the following description that the device can be used with equal facility in conjunction with other types of rotary bodies; and said device is exceedingly simple in construction and is highly efficient in action, requiring but a minimum amount of oil to maintain the contacting parts in properly-lubricated condition. Said device may be made of brass or cast-iron or any other suitable metal, and it includes in its construction a longitudinal perforated sleeve which fits into the hub of a pul ley or similar device and around the shaft carrying such pulley, and said sleeve has a groove extending lengthwise thereof, but closed at its ends, and carries a sleeve suitably fixed thereto, upon which is mounted an oil-containing device, which latter has a conduit arranged to carry the oil to said groove, and the oil leaving the groove reaches through the perforations all parts of the journal and pulley to be lubricated.

It is understood, of course, that I employ the term oil in its broad sense to include within its scope any lubricating materials.

The invention is clearly represented in the accompanying drawings, forming a part ,of this specification, and in which- Figure 1 is a longitudinal sectional elevation of the lubricator, showing the manner of using the same. Fig. 2 is a front elevation of the device. Fig. 3 is a side elevation of the same. Fig. l is a perspective view of a sleeve. Fig. 5 is a detailin plan of a stay-rod.

Like characters refer to like parts in all the figures of the drawings. a 3

Referring now to the drawings, the numeral 1 indicates a shaft, and the numeral 2 a loose pulley carried thereby, in connection with which the improved lubricating device is designed to operate.

The lubricating device hereinafter described-is held against rotation by suitable vstantly lubricated.

means hereinafter described, and it includes a sleeve, as 3, adapted to fit around the shaft 1 and within the hub of the pulley. The sleeve 3 has upon its periphery and extending lengthwise thereof along the top the longitudinal groove 4, which runs practically the full length of the sleeve, it being therefore apparent that the ends of the groove are closed. The groove has in its bottom perforations or holes, as 5. The sleeve has along its opposite sides and in its bottom like perforations or holes, as 6, it being seen that there are three rows of said holes 6, three being in each row, though their disposition and number may be changed. The sleeve has at one end thereof a collar, as7, held fixedly in place by suitable means, as by the set-screw 8, tapped into said collar and engaging the sleeve, and the latter has in vertical line with said screw a tapped hole to receive the lower threaded end of the tube or conduit 9, depending from an oil-containing device 10, which consists, preferably, of a sight-feed oil-cup. The lower end of the conduit or tube 9 is arranged just over the right end of the groove 4, so that the oil which descends from said cup through said conduit will be delivered into said groove and will pass from saidfgroove through the perforations 5 therein onto the shaft 1 and downward and through the lower row of holes 6 to thereby lubricate the pulley, and said oil is carried around by the rotating pulley and caused to pass through the holes 6 in the sides of the sleeve.

The following advantages have been practically demonstrated The device requires but an ounce of oil daily to maintain a shaft and pulley con- It obviates the use of Babbitt metal. It protects the shaft, all the wear being on the sleeve,which will last many quickly at a trifling cost. By its use the pulleywill not become overheated, and .it runs 'noiselessly.

A machine does not have to be startedin order to lubricate shaft, as the operation is automatic, and the cup need be filled but once a day. Without the use of the lubricator the belt has tobe shifted from loose to tight pulley to start operation, and the loose pulley has to be stopped by gripping with hands before oil is applied, by do- I GO ing which many fatal accidents have been caused.

A stationary standard or post is shown at 15, it being suitably mounted, and an eye at one end of the stay rod or wire 16 embraces the upper end of said standard. The opposite end of the rod or Wire has a hook detachably engaging the knob of the cap of the oilcup 10, this construction serving to hold the lubricator against rotation and being shown in detail only in Fig. 3.

Having described theinvention, I claim In a lnbricator of the class described, a sleeve having a longitudinal groove in its periphery and also having perforations certain of the perforations being in the groove and the remainder being in the plain or nongrooved portion of the sleeve, a collar separate from the sleeve and fitted thereon, means for holding the collar on the sleeve, and an oil-cup having a straight depending tube the lower end of which is fitted into an opening CLAUDE S. SOOBEE.

Witnesses:

H. L. GILBERT, O. J. GILBERT. 

